The Gear,helical, cataloged under National Stock Number 3020-00-882-6948, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-882-6948 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Helix Angle | 14.9331 DEGREES |
| Hub Nominal Diameter | 4.000 INCHES FIRST END IN |
| Hub Nominal Diameter | 4.552 INCHES SECOND END IN |
| Teeth Quantity | 34 |
| Tooth Direction | RIGHT |
| Nominal Distance Between Body Face and Protruding Hub End | 5.500 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 57.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-5626,CON F MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.0270 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | 1 GROOVE FIRST END |
| Nominal Outside Diameter | 5.312 INCHES IN |
| Nominal Distance From End to First Groove | 0.688 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| First Groove Nominal Diameter | 3.000 INCHES FIRST END IN |
| First Groove Nominal Width | 1.000 INCHES FIRST END IN |
| Face Nominal Width | 1.000 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 379D711H01 | 3/2 Design control — primary reference U.S. Government activity |
| 715J627PC134 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-00-882-6948 is a Gear,helical, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-882-6948: Helix Angle: 14.9331 DEGREES; Hub Nominal Diameter: 4.000 INCHES FIRST END IN; Hub Nominal Diameter: 4.552 INCHES SECOND END IN; Teeth Quantity: 34. 20 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.